QR code is a matrix barcode (or two-dimensional code), readable by QR scanners, mobiles phones with cameras and smartphones. The code consists of black modules arranged in a square pattern on white background. The information encoded can be text, URL or other data. Common in Japan, where it was created by Japanese corporation Denso-Wave in 1994, the QR code is one of the most popular types of two-dimensional barcodes. QR is the initialism of Quick Response, as the creator intended the code to allow its contents to be decoded at high speed.

‧ URL (visit URL)
‧ Email Address (send email)
‧ SMS (send SMS)
‧ Phone Number (call)
‧ Geo Location (visit location)